#include<stdlib.h>
#include<stdio.h>
#include<string.h>

extern char* select_data(char *arg1);
extern char *create_table();
extern char* insert_data(char*,int,char*,float);
extern char* collect_user_data();
extern char* collect_update_data();
extern char* update_data(char*,char*,char*,int);
extern char* collect_delete_data();
extern char* delete_data(char*,int);
extern void gui();
